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Reinforced PP composite material with low temperature resistance

A composite material, low temperature resistance technology, applied in the field of plastic modification, can solve problems such as high impact resistance requirements, can not meet the use requirements, etc., achieve the effect of meeting the use requirements, excellent low temperature resistance, and expanding the scope of application

Inactive Publication Date: 2014-04-09
QINGDAO DADU NEW MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, none of the above-mentioned methods in the prior art can meet the requirements of use, especially for bumpers and instrument panels on automobiles, which require high impact resistance of materials at low temperatures, so the formulation of low-temperature-resistant reinforced PP composite materials is studied It is of great significance to improve the performance of the product and expand the application range of the product

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] The present invention will be further described below through specific embodiments.

[0020] The technical solution provided in this embodiment is: a low temperature resistant reinforced PP composite material, which is composed of the following components in mass percentage: homopolymer PP accounts for 25%-40%, copolymer PP accounts for 30%-49%, talc powder and The cold-resistant agent accounts for 15%-25%, and the antioxidant, lubricant and coupling agent are the balance.

[0021] Wherein, the homopolymer PP adopts T30S.

[0022] Wherein, the copolymerized PP adopts F800E.

[0023] Wherein, the cold resistance agent adopts dioctyl adipate, diisodecyl adipate, dioctyl azelate or dioctyl sebacate.

[0024] Among them, tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate] pentaerythritol ester is used as the antioxidant.

[0025] The preparation method of the above-mentioned low-temperature-resistant reinforced PP composite material provided in this embodimen...

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Abstract

The invention belongs to the technical field of plastic modification, and especially relates to a reinforced PP composite material with low temperature resistance. The reinforced PP composite material is composed of, by weight, 25%-40% of homopolymerized PP, 30%-49% of copolymerized PP, 15%-25% of talcum powder and cold-resistant agents, and the balance being anti-oxidants, lubricants and coupling agents. The preparation method comprises blending, extrusion and granulation. The composite material can keep good toughness under a low temperature condition, and meets the usage requirements of PP composite materials at a low temperature.

Description

technical field [0001] The invention belongs to the technical field of plastic modification, in particular to a low-temperature-resistant reinforced PP composite material. Background technique [0002] Polypropylene (PP) is a general-purpose plastic resin with a wide range of sources and low prices, and has a very wide range of uses. It has high crystallinity and regular structure, so it has excellent mechanical properties. The absolute value of the mechanical properties of polypropylene is higher than that of polyethylene, but it is still a relatively low variety in plastic materials, and its tensile strength can only reach 30 MPa or a slightly higher level. Polypropylene with a larger isotactic index has higher tensile strength, but as the isotactic index increases, the impact strength of the material decreases, but it does not change after falling to a certain value. [0003] Temperature and loading rate have a great influence on the toughness of polypropylene. Whe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L23/14C08K3/34C08K5/11
CPCC08L23/14C08L23/12
Inventor 赵成方
Owner QINGDAO DADU NEW MATERIAL TECH